Motor for floor-scrapers and the like.



B. W. ANDERSON.

MOTOR FOR FLOOR ASCRAPERS AND THE LIKE.

APPLICATION FILED JUNE A12, 1912.

Patented May 6,V 1913.

2 SHEETS-SHEET 1.

ArQsIff/ny mw mgm NNN Y'E. W. ANDERSON. MOTOR POR FLOOR SGRAPERS AND THE LIKE APPLICATION FILED JUN 12, 1912.

Patented May 6, 1913.

2 SHEETS-SHEET Z.

f/zyezfor 2732 Winde/73022.

tunisien 3EME W. ANDERSON, OF CHICAGO, ILLNQES, ASSIGNGR 'E0 TRIEPLE A Lilli:..\.Gl"df1`-lEA COMPANY, 0F MANSTEE, MESI-EDGAR.

EJIOTREOR FLOQR-SGRAPEM AND THE LIK.

.application le June 12, 1912. Serial 'io.. *fof-.Mom

To all whom, I5 ma?) aendern:

Be it known that It, Enfin ANDERSON, a citizen ot' the United States, and a resident of the city of Chicago, county of Cook, and State ot illinois, have invented certain new and useful improvements in Motors for Floor-Scrapers and the Like, of which the following is a specification,l

' This invention relates to new and useful improvements in motors for floor scrapers and the like of the type adapted for reciprocation over the surface of the iioor, wherein the yscraping or cutting action thereof is taken upon the stroke or movement of the scraper toward the operator.

The oloieetv of the present'invention is the construction of a'rootor for Va floor scraper or the like of this type wherein means will he provided for overcoming the inertia -at the limit of each stroke of the scraper to aid in starting the scraper upon the return stroke or movement.

Viith the ahove and other objects in View, this 'invention consists in the construction, combination, and arrangement ot parts, all as hereinafter more fully described, claimed and illustrated in the accompanying drawings, wherein Figure 1 is a side elevation of a tioor scraper constructed in accordance with the present invention, setting forth a portion thereof broken away tor purposes of illustration, Fig. 2 is a top plan view thereof,

' Fig. 3 is a perspective view of the 'coperating springs utilized in overcoming the inertia at the terminus of each stroke of the scraper.

Reference being had more particularly to the drawings, 10 indicates a frame or carriage having the forward terminal thereof cut inwardly to provide a horizontal hearinnl or arm 11. A sha t't 1Q is mounted transversely tor rotationv centrally in the vertical sides of the 'trame or carriage 10 and has the Wheels 13 keyed to the terminals thereof for the purpose ot' hearing upon the iioor. A sleeve 14 is mounted upon the shaft 12 and is retained in fixed relation thereto by the pin 15 piercing one terminal of the sleeve 14 and the adjacent portion of the shaft l2. This sleeve is provided with a longitudinal slot 16 therein in which the terminals of the springs, hereinafter more fully described, are secured.

A cylindrical casing 17-is loosely mounted specification of Letters Tcatent.

Patented Tfr/lay e,

upon the sleeve ist adjacent to one side of `the trame or carriage'l() and is retained from possi-tile rotation hyv means of the holt or stud 18 formed on the side oit the frame or carriage 10 engaging the ears .or projections 19 :termed upon the casing.u A coil spring 20 is mounted upon one side ot the sleeve 14 and has one terminal thereof bent l inwardly and secured in the slot 16 of said y sides of the casing 17, said loops extending to said pin from opposite directions, due tothe vceiling of the springs 20 and 21.

Springs 20 and 2l are normally held in partially wound condition, so that Aas the frame or carriage 10 is pushed in the direction of the arrow A in Fig. 2, the spring 20 will he Wound and 'spring 2l unwound., so that when the carriage or trame 1.0 has reached the limit ot its forward movement and the operator starts to move the same in reverse direction, the spring 20 will unwind, thus overcoming the inertia and aiding the starting of the movement of ltrame or carriage 10 in the reverse direction. The movement ot the frame or carriage 10 in the reverse direction causes spring 21 to be wound and spring 20 to he unwound so that at the end of this 'movement spring 21. will assist the operator in overcoming the inertia and starting the device on its return movement. ln operating a device of this character, it is the stopping and starting of the same which are ditticult to accomplish, it being easy enough to keep the device in motion when once set in motion in the proper direction, so that while during the central ortions of ythe operative motion in either direction, the springs practically neutralize each other, one spring is always wound so as to assist in stopping and restarting the device in the other direction.

While I have illustrated and described the preferred 4form, et construction for carrying my invention into effect, this is capable of variation and modification Without departing from the spirit of the invention. I, therefore, do not Wish to be limited to the exact details of construction set forth, but desire to avail myself of such variations and modifications as come Within the scope of the appended claims.

Having described my invention, What I claim as new and desire to secure by Letters Patent, is:

1. The combination with a reciprocatory carriage, of means for storing .up energy upon each stroke of the carriage; andmeans for expending the energy stored up upon a prior stroke to assist the propulsion of said carriage.

2. The combination Witha reciprocatory carriage, of springs arranged for storing up energy upon each stroke of the' carriage; and means for expending the energy in said springs to assist the propulsion of said carriage in each direction.

3. The combination With a reciprocatory Wheeled carriage; of oppositely arranged springs coperating with said Wheels, one of said springs for storing energy upon one movement of the carriage, While the opposite spring expend's energy stored on the previous movement of the carr'age.

4. The combination with a eciprocatory carriage; of a shaft mounted in said earriage; Wheels fixed to said shaft for rotal tion upon the movement of said carriage;

a sleeve rigidly mounted on said shaft; and oppositely Wound springs arranged upon said sleeve having their inner terminals secured to said sleeve and their outer terminals to said carriage.

5. The combination With a reciprocatory carriage; of a shaft mounted for rotation therein; traction Wheels fixed to said shaft a sleeve rigidly mounted on said shaft provided With a longitudinal groove therein; oppositely Wound springs mounted on said sleeve having their terminals bent inwardly and secured in the groove aforesaid; and a pin securing the outer terminals of said springs to the carriage aforesaid.

6. The combination With a reciprocatory carriage; of a shaft mounted for rotation therein; traction wheels fixed to said shaft a sleeve rigidly mounted on said shaft having a longitudinal groove formed therein; a casing loosely mounted upon said shaft and secured against movement to said carriage; oppositely Wound springs mounted upon said sleeve having their inner terminals bent inwardly for engagement With the groove aforesaid; and a pin piercing said `casing for engagement with the outer terminals of the springs to retain the same from movement.

In testimony whereof I have signed my name tothis specification in the presence of two subscribing Witnesses.

EM IL lV. ANDERSON.

Witnesses:

JosnUA R. H. Po'l'rs, ARTHUR A. OLsoN. 

